Passive Q-Switch Crystal
    Cr:YAG is one of the most promising passive Q-switching materials for passively Q-Switching diode pumped or lamped Nd or Yb doped lasers at wavelength from 0.8 to 1.2um. Because of its chemical stability, durability, UV resistance, good thermal conductivity, high damage threshold and easy operation, it will replace some traditional switching materials, such as LiF and organic Dye.